How to solve this problem?

**I get an error when I run the code:**
Traceback (most recent call last):
  File "fire_smoke_demo.py", line 59, in <module>
    for idx in torch.topk(outputs, k=2).indices.squeeze(0).tolist():
AttributeError: 'tuple' object has no attribute 'indices'
can you help me ?thank you very much.
